<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<script>
    var age=1;
    do{
        console.log('今年'+age+'岁');
        age++;
    }while (age <= 100)
    
</script>
<body>

</body>
</html>